Autotuner for fuzzy controller-relay based approach

Author

Makkonen, Arto ; Koivo, Heikki N.

Author_Institution

Control Eng. Lab., Tampere Univ. of Technol., Finland

Volume

4

fYear

1995

fDate

20-24 Mar 1995

Firstpage

1987

Abstract

The paper suggests an automatic tuning method for fuzzy controller of an unknown system. Tuning is composed of rough tuning and fine tuning phases. The main idea is to obtain a second-order model for the process from two points on the Nyquist plane and to perform optimization of the fuzzy controller rule-base with this model. The two frequency points are found using a simple estimation technique from relay control results

Keywords

Nyquist diagrams; adaptive control; fuzzy control; intelligent control; relay control; self-adjusting systems; Nyquist plane; automatic tuning method; fine tuning; fuzzy controller autotuner; fuzzy controller rule-base optimization; relay based approach; relay control; rough tuning; second-order model; unknown system; Automatic control; Control systems; Cost function; Frequency estimation; Fuzzy control; Fuzzy systems; Least squares approximation; Nonlinear control systems; Relays; Tuning;

fLanguage

English

Publisher

ieee

Conference_Titel

Fuzzy Systems, 1995. International Joint Conference of the Fourth IEEE International Conference on Fuzzy Systems and The Second International Fuzzy Engineering Symposium., Proceedings of 1995 IEEE Int

Conference_Location

Yokohama

Print_ISBN

0-7803-2461-7

Type

conf

DOI

10.1109/FUZZY.1995.409951

Filename

409951